Gauss-Bonnet brane gravity with a confining potential

TL;DR

This paper explores a brane-world cosmology with Gauss-Bonnet gravity and a confining potential, deriving modified Friedmann equations that can explain the universe's accelerated expansion and align with observational data.

Contribution

It introduces a novel brane model incorporating Gauss-Bonnet terms and a confining potential, leading to new modified Friedmann equations with potential cosmological implications.

Findings

Modified Friedmann equations include extra terms resembling X-matter.

The model's universe age is consistent with current observations.

Provides a phenomenological explanation for cosmic acceleration.

Abstract

A brane scenario is envisaged in which the $m$-dimensional bulk is endowed with a Gauss-Bonnet term and localization of matter on the brane is achieved by means of a confining potential. The resulting Friedmann equations on the brane are modified by various extra terms that may be interpreted as the X-matter, providing a possible phenomenological explanation for the accelerated expansion of the universe. The age of the universe in this scenario is studied and shown to be consistent with the present observational data.